Unloading apparatus



Spt. 21 1926.

W. W. LANDRUM UNLOADING APPARATUS Filed Feb. 10, 1926 2 Sheets-Sheet 1 Sept. 21 1926.

w. w. LANDRUM UNLOADING APPARATUS Filed Feb. 10. 1926 2 Sheets-Sheet 2 Patented Sept. 21, 1926. 1

UNITED STATES mam BATENT OFFICE.

WILLIAM W. LANDRUM, 0F LEAGUE CITY,- TEXAS.

UNLOADING Application filed February This invention relates to new and useful imgrovements in an unloading apparatus.

ne ob ect of the lnventlon 1s to provlde an. apparatus of the character described spetain novel features of construction, operation and arrangement of parts, an. example of which is given in this specification and illustrated in the accompanying drawings, wherein Figure 1 shows a fragmentary side elevation of the apparatus shown in its relation to a barge to be unloaded and the unloading hopper.

igure 2 shows a side elevation of the power apparatus for handling the cables.

Figure 3 shows a plan view of the scoop employed, and v Figure 4 shows a front elevation thereof, as suspended from its carriage.

Referring now more particularly to the drawings, wherein like numerals of reference designate similar par-ts in each of the figures, the numeral 1 designates a conventional form of tractor which may be conveniently used for operating the apparatus. This tractor, as now constructed, is equipped with the cable winding drums 2, and 3, oper- V atively connected with the motor thereof, and capable of manipulation to either wind or unwind the cables 4 and 5 in the well known manner.

The numeral 6 designates a suitable upright standard, or support, on which the sheaves 7 and 8 are mounted, said support also forming an anchor for the guide cable 9. One end of the cable 9 is attached to the top of said anchor and its other end is anchored to the barge 10, to be unloaded, or to some other fixed anchor adjacent the material to be handled.

There is a scoop carriage formed of the vertical plates or members 10, 10, suitably secured together and spaced apart. This carriage has the carrying sheaves 11, 11, which run on the cable 9. There as a scoop 12 suspended from the carriage. This scoop has the ri id inverted V-shaped bails 13 l4 pivote thereto.

APPABATUS.-

10, 1926. Serial No. 87,429.

The cable/1 works overthe sheave 7 and passes between the plates 10 working-be tween the spools 15, 15, rotatably mounted between said plates and said cable; also works over the sheave 16 located on or adjacent the barge 17 'or near thematerial to be handled, and around the sheave 18between the plates 10, and its end is attached to the bail 14. This cable has a branch 19 which works over the sheave 20, mounted between the carriage plates, and is attached to the bail 13.

The cable 5 works over the sheave 8 and its free end has a ring 21. The discharge end ofthe scoop 12 has a bail 22 pivoted thereto and a cable 23 works through the ring 21, and has its ends fastened, one to the carriage and the other to the bail 22.

The underside of the carriage has the spaced notches, or seats, 24L, 25, to receive the bails 13 and 14; and these bails normally engage over the spring seated dogs 26, 27, and sustain the scoop from the carriage. These dogs have lateral lugs 28, 29, which work through slots 30,31, in the adjacent side plate 10. Pivoted to this plate 10' are the levers 32 33, the former of which has an extension 3 1 which engages above the lug 28, and the other lever 33 engages above the lug 29. The upper ends of these levers are pivoted to the ends of oppositely working actuating rods 36, '36. The other ends of these rods are formed with eyes 37 38, which run on the'cable 9.

In operation the cable 5 is released, or unwound, from the drum 3 and this permits the carriage and scoop to descend, by power or gravity, onto the material to be handled. Thereupon the 'eye 37 strikes the stop 39, fixed on the cable 9, and the lever 32 will thereby be actuated and its extension 34 will operate through the lug 28 to disengage the dog 26 from the bail 13, and the dog 27.

having been previously released from its baill l, as hereinafterexplained, the scoop 12 will drop down onto the material; meanwhile the cable 4 is wound up onto its drum 2 to take up its slack.

The drum 3 is then manipulated to wind up the cable 5 and the cable 4 is gradually released, or permittedto unwind, and the scoop is guided by the workmen, through the scoop handles 40, to cause it to fill while being dragged over the material, or if of suflicient weight the scoop will fill of its own accord. Y

is over the unloading hopper 43.

l/Vhen the scoop is loaded the one cable is held against further unwinding and the other cable is gradually Wound up thus operating to elevate the loaded scoop 12 and carrying the bails 13 and 14 up into the notches 24 and 25. These bails will strike the beveled ends of the dogs 26, 27, and force said dogs back'and pass above and the dogs will thus .be projected through said bails by the springs 41, 42, against which they are seated. The cable 4 is then permitted to gradually unwind as the cable 5 is wound up and the carriage is thus elevated until the scoop Thereupon the ring 88 will strike the stop 44 fixed on the cable 9, and the lever 33, will be actuated to operate against the lug 29 and release the dog 27 from the bail 14. Theccable 5 is then slightly released to permit the discharge end of the scoop to fall and the load will be immediately discharged into the hopper 43.

What I claim is: 1. An apparatus of the character described including a carriage, a. track on which the carriage is mounted, means for moving said carriage along the track, a scoop, releasable means through which the respective ends of the scoop are suspended from the carriage and means for alternatively releasing said suspending means.

,2. An apparatus of the character described including a carriage, a track on which the carriage is mounted, means for moving said carriage along said track in one direction, said carriage being movable along the track by gravity in the other direction, a scoop, releasable means through which the respective. ends of the scoop are suspended from said track, means through which the respective suspending means are released, in. succession, as the scoop reaches the limit of its movement in'each respective direction.

3. An apparatus of the character described including a carriage, a track on which the I carriage is mounted, means for moving said carriage along said track in one direction, said carrlage being movable along the track by gravity in the other direction, a scoop, re-

leasable means through which the respective ends of the scoop are suspended from said track, means through which the respective suspending means are released, in succession, as the scoop reaches the limit of its movement in each respective direction and other scoop suspending means adapted to co-act with said moving means to effect the re-engagement of the scoop with said releasable suspending means.

4. An apparatus of the character described including a track, a carriage movable along said track, means for moving said carriage along the track, a scoop having end bails, releasable means on the carriage adapted to engage said bails to suspend the scoop from the carriage, means adapted to release the respective suspending means from the corresponding bails alternately at the end of the carriage movements in their respective directions. g

5. An apparatus of the character described including a track, a carriage movable along said track, means for moving said carriage along the track, a scoop having end bails, releasable means on the carriage adapted to engage said bails to suspend the scoop from the carriage, means adapted to release the respective suspending means from the cor responding bails alternatively at the end of the carriage movements in their respective directions andother scoop suspending means adapted to co-act with said moving means to efiect the re-eng'agement of said bails with said releasable means.

6. An apparatus of the character described including a track, a carriage movable along the track, means for moving said carriage in either direction alongcthe track, a scoop having end bails, releasable suspending means on the carriage adapted to engage said bails and suspend the scoop from the carriage, means adapted to alternately release the respective suspending means atthe end of the carriage movements in each respective direction.

7. An apparatus of the character described including a track, a carriagevmovable along the track, means for moving said carriage in either direction along the track, a scoop having end bails, releasable suspending means on the carriage adapted to engage said bails and suspend the scoop from the carriage, means adapted to alternately release the respective suspending means at the end of the carriage movements in each respective direction and other scoop suspending means adapted to co-act with said moving means to efiect the re-engagement of said bails with said releasable suspending means.

In testimony whereof I have signed myname to this specification. WILLIAM W. LANDRUl/L 

